I love my MIche Bag original. I've got a black one and a brown one and about 7 shells to go with them. I only buy them from IW when they are on offer. They are sometimes at craft shows and if you buy from them you get a loyalty card which means you sometimes get a better price at the shows.
Just bought the large bag and a shell from IW - resisted for ages but finally gave in. It arrived last week and is absolutely brilliant.